Insights into propane combustion over MoO3 promoted Pt/ZrO2 catalysts: The generation of Pt-MoO3 interface and its promotional role on catalytic activity

Insights into Different Reaction Behaviors of Propane and CO Oxidation over Pt/CeO2 and Pt/Nb2O5: The Crucial Roles of Support Properties

“…Obviously, the PtO x species in Pt/Nb 2 O 5 catalyst could be easier reduced to metallic Pt 0 species during the CO and propane oxidation reactions. Such an observation is related to the fact that the medium strong and strong acid sites in this catalyst are beneficial for the facile reduction of PtO x to metallic Pt 0 species, , consistent with the H 2 -TPR result (Figure b).…”

“…Liu et al found that the metallic Pt 0 species in a Pt/BN catalyst were the crucial active species for propane oxidation, and the more stable Pt 0 species on the edges of BN supports exhibited higher activity. Zhao et al demonstrated that the Pt-MoO 3 sites constructed by introduction of MoO 3 on Pt/ZrO 2 could significantly accelerate the cleave C–H and decomposition of surficial carbonate, which promote the catalytic activity. However, the actives sites of Pt based catalysts are still debatable for CO and propane oxidation.…”

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

“…Based on the elemental compositions above, the concentrations of Pt that were observed were lower than the theoretical concentration of Pt metal by the addition of PtCl 4 solution used in the impregnation process. This discrepancy occurred due to competition between impregnated Pt metals, causing the formation of multilayer stacking of the active metal in the pore mouth area of the carrier material [60,61]. The active Pt metal that sat at the top position would have weak interaction and would experience easier desorption [62].…”

ZrxPr1–xOy Solid Solution‐Supported Cobalt‐Based Catalysts for Hydrogen Production

“…ZrO 2 is an amphoteric oxide with both acidic and alkaline sites, which not only contributes to the adsorption of steam and carbon oxides on the catalyst surface but also promotes the dissociation of water on the catalyst surface [17,18]. However, as reported by Zhao et al [19], sintering of the active component was found at high temperature when only ZrO 2 was applied as support for a Pt-based catalysts. With the rare earth element yttrium in the ZrO 2 support, thermal stability was improved in a Ni/Y 2 O 3 -ZrO 2 catalyst for SR of glycerol [20].…”